mirror of
https://github.com/ceph/ceph-csi.git
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79 lines
2.3 KiB
Go
79 lines
2.3 KiB
Go
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/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package objectutil
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import (
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"errors"
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"fmt"
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apimeta "k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apimachinery/pkg/labels"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"sigs.k8s.io/controller-runtime/pkg/client/apiutil"
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)
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// FilterWithLabels returns a copy of the items in objs matching labelSel.
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func FilterWithLabels(objs []runtime.Object, labelSel labels.Selector) ([]runtime.Object, error) {
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outItems := make([]runtime.Object, 0, len(objs))
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for _, obj := range objs {
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meta, err := apimeta.Accessor(obj)
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if err != nil {
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return nil, err
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}
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if labelSel != nil {
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lbls := labels.Set(meta.GetLabels())
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if !labelSel.Matches(lbls) {
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continue
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}
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}
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outItems = append(outItems, obj.DeepCopyObject())
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}
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return outItems, nil
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}
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// IsAPINamespaced returns true if the object is namespace scoped.
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// For unstructured objects the gvk is found from the object itself.
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func IsAPINamespaced(obj runtime.Object, scheme *runtime.Scheme, restmapper apimeta.RESTMapper) (bool, error) {
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gvk, err := apiutil.GVKForObject(obj, scheme)
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if err != nil {
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return false, err
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}
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return IsAPINamespacedWithGVK(gvk, scheme, restmapper)
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}
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// IsAPINamespacedWithGVK returns true if the object having the provided
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// GVK is namespace scoped.
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func IsAPINamespacedWithGVK(gk schema.GroupVersionKind, scheme *runtime.Scheme, restmapper apimeta.RESTMapper) (bool, error) {
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restmapping, err := restmapper.RESTMapping(schema.GroupKind{Group: gk.Group, Kind: gk.Kind})
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if err != nil {
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return false, fmt.Errorf("failed to get restmapping: %w", err)
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}
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scope := restmapping.Scope.Name()
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if scope == "" {
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return false, errors.New("scope cannot be identified, empty scope returned")
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}
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if scope != apimeta.RESTScopeNameRoot {
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return true, nil
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}
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return false, nil
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}
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